Fire alarm



FIG. 1 shows a top perspective view of the fire alarm.

FIG. 2 shows a top plain view of the fire alarm.

FIG. 3 shows a bottom plain view of the fire alarm.

FIG. 4 shows a first side view of the fire alarm.

FIG. 5 shows a second side view of the fire alarm.

FIG. 6 shows a third side view of the fire alarm; and,

FIG. 7 shows a fourth side view of the fire alarm. 

The ornamental design for a fire alarm, as shown and described. 